Buffing-machine.



E. R. DOUGLAS.

BUFFING MACHINE.

APPLIOATION FILED 11111121.1911.

ATTORNEYS wlTNEssE's E. R. DOUGLAS. BUPHNG MACHINE.

APPLICATION FILED JULY21, 1911.

Patented Apr. 2, 1912.

18 SHEETS-SHEET 2.

INVENTOR WITNESSES fgxgwz,

ATTORNEYS B. R. DUUGLAS.

BUFFING MACHINE.

APPLIoATIoN FILED JULYz1,1911.

Patented Apr. 2, 1912.

18 SHEETS-SHEET 3.

mvE'NTon ATTORNEYS E. R. DOUGLAS.

BUFFING MACHINE.

APPLIOATION FILED JULY 21, 1911.

Patented Apr. 2, 1912.

18 SHEETS-SHEET 4.

ATTORNEYS E. R. DOUGLAS.

BUFPING MACHINE.

APPLIOATION FILED 1111121, 1911.

1,022,128. Patented 1111121912. y

1B SHEETS-SHEET 5.

WITNESSES m e l l ATTORNEYS E. R. DOUGLAS.

BUFHNG MAGHINB. V APPLICATION FILED JULY 21, 1911. 1,022, 128, Patented Apr. 2, 1912.

18 SHEETS-SHEET 6.

l h n l n n n n nl wlTNEssEs E. R. DOUGLAS.

BUPPING MACHINE.

APPLIOATION FILED 1111121.11111,

1,022, 1 28. Patented Apr. 2, 1912.

18 SHEETS-SHEET 7.

O jyjz.

Jfllliv WITN ESSES ATTORNEYS Patented Apr. 2, 1912.

18 SHEETS-SHEET 8 I VENTUR ATTRNEYS E. R. DOUGLAS.

BUFFING MACHINE.

APPLIoATIoN FILED JULY 21, 1911.

jl'jl.

` WITNESSES E. R. DOUGLAS.

BUPFING MACHINE.

APPLIOATION FILED JULY 21, 1911.

Patented Apr. 2, 1912.

1a salami-SHEET e.

INZENTOB i l I J WITNESSES ATTORNEYS E. R. DOUGLAS.

BUFFING MACHINE.

APPLICATION FILED JULY 21, 1911.

1,022, 1 28. Patented Apr. 2, 1912.

1B SHEETB-SHBBT 10.

WITNESSES ATTORNEYS B.R.D0UGLAS.

BUFFING MACHINE. Y APPLICATION FILED JULY 21,1911. 1,022, 1 28, Patented Apr. 2, 1912.

1B SHBETSBHEET 11.

INVENTOR l wa? A ATTURNEYS wlTNEssEs .a/69M@ E. R. DOUGLAS.

BUPFING MACHINE.

APPLICATION FILED JULY 21, 1911.

1,022,128, Patented Apr. 2, 1912.

- 18 SHEETS-SHEET l2. lyzz.

l I W ,ff i5 Z E C, 4?

// /J FJ w.- f @I JJ 7f F by; JH 55 WITNESSES INVENTDR BY E u E. R. DOUGLAS.

BUFFING MACHINE.

APPLIOATION FILED 1111121.11111.

1,022, 1 28. Patented Apr. 2, 1912.

18 SHEETS-SHEET 13.

ATTORNEYS E. R. D LAS.

BUFFING EINE.

LLLLLLLLLLLLLLLLLLLLLLLLLL 1. i 1,022,1 28. Patented Apr. 2, 1912.

18 SHEETS-SHEET 14.

WITNESSES INVENTOR @a @JWM ATTORNEYS A E. R. DOUGLAS.

BUFFING MACHINE.

APPLICATION FILED JULY21,1911.

1,022, 1 28. Patented Apr. 2, 1912.

18 SHEETS-SHEET 15.

WITNESSES INVENTOR i a7 ATTORNEYS E. R. DOUGLAS.

BUFFING MACHINE.

APPLIOATION FILED JULY21.1911.

Patented Apr. 2, 1912.

18 SHEETS-SHEET 17.

INVENTOR ATTORNEYS E. R. DOUGLAS.

BUFFING MACHINE.

APPLICATION FILED JULY21,1911.

1,022, 1 28. Patented Apr. 2, 1912.

18 SHEETS-SHEET 18.

WITNESSES INVENTOR y. Qfzf f moan@ lli) EDWIN RUST DOUGLAS, OF GLENSIDE, PENNSYLVANIA.

BUFFING-MACHINE.

Specification' of Letters Patent.

Application led July 21, 1911.

Patented Apr. 2, 1912. serial No. 639,704.

To all whom it may concern:

Be it known that I, EDWIN RUST DoUG- LAS, a citizen of the United States, residing at Glenside, Montgomery county, State ot' Pennsylvania, have invented a new and useful Bufiin -Machine, of' which the following is a speci cation.

My invention consists of a novel construction of an automatic bufiing machine, especially ada ted for the bufling or burnishing off meta caps or the like, although it will be understood that my invention is i capable of general adaptation for the grinding, polishing, burnishing or buffing of irregular or grooved, cylindrical or other surfaces generally, my aim being to provide a mechanism .of this character which is wholly automatic in its action and will smooth and polish all exterior portions of the article to be finished, each portion of said article being buffed to the desired extent to produce a finished article with an outer surface of uniform smoothness and polish, means being provided for presenting the article first to the coarser portion of the abrading wheel, and provision being made for lastly presenting the article to the finer or finishing abrading wheel, all the steps in the operation from the time the articles are fed into the machine until they are ejected from the chuck supporting the same, being entirely automatic, and requiring no attention froml the operator or attendant.

While I have shown my present invention as especially applicable to the automatic buffin or polishing of hollowr metal caps or cylin ers, which may be closed at one end, it will be apparent that the same is adapted to the treatment of any article of similar or analogous shape, such as convex heads of screws, or knobs or mounts of brass bedsteads, or any other similar article of' cylindrical or other shape, which can be gripped in revolving chuck jaws, and which may have a plane, irregular, or grooved surface, which it is desired to finish by grinding, burnishing, polishing or bufiing of the same.

My novel automatic apparatus results in a material reduction in the cost of grinding, burnishing, polishing or buffing, and being automatic in its action, will turn, out a maximum quantity of work within a minimum length of time and is simple, cheap, reliable, an effective inits operation.

To the above ends my invention consists of a novel construction of an 'automatic buffing machine, wherein is employed a novel construction of a floating chuck or chucks, which are adapted to automatically engage the article to be buffed, and to automatically present the sides and'top thereof to the bufhng wheel, provision being made for simultaneously effecting the rotation of the chucks during their travel toward and around the buffing wheel, and means being also provided for automatically effecting the ejection of the buffed articles from their chucks, all the above steps being effected automatically, without requiring any attention on the part of the operator.

It further consists of a novel construction of a frame work carrying a main shaft having a buffing wheel thereon, a sleeve around said main shaft having a table fast thereon, and an article receiving mechanisln, also movable in unison with said sleeve and table.

It further consists of a novel construction of a rotatable table, a floating chuck or chucks carried thereby, a plurallty of cams and connections from said cams to said chucks for effecting the actuation of the latter.

It further consists of a novel construction of a floating chuck or chucks, means for automatically opening and closing said chucks, means for rotating said chucks and means for automatically operating the ejector device of said chucks.

It further consists of a novel construction of a rotary table, carrying a pinion, a stationary, internal gear engaging said pinion, a floating chuck carried by said table, connections from said pinion to effect the rotation of said chuck, tripping mechanism carried by said table to open and close said chuck jaws, a plurality of cams located on opposite sides of said chucks and connections from said cams to said chuck casing to effect the fioating movement of the latter with respect to the bufing device.

It further consists of a novel construction of a floating chuck or chucks, a series of fixed and adjustable cams, connections common to said cams and chucks for effecting the actuation of the latter, and adjusting devices for effecting the adjustment of said adjustable cams.

It further consists of a novel construction of an article receiving mechanism, means for actuating the same, and means for edecting the adjustment of certain parts thereof.

It further consists of a novel construction of tension devices and cushioning devices for the levers and bars, connected with the chuck operating mechanism.

The invention is satisfactorily illustrated in the accompanying drawings, but the important instrumentalities thereof may be va ried, and so it is to be understood that the invention is not limited to the speciiic arrangement and organization shown and described.

Figure 1 represents a side elevation partly in section of a buiiing machine embodying my invention. Fig. 2 represents an end elevation of the same, showing particularly the relation of certain of the cams employed. Fig. 3 represents a similar view of Fig. 2, certain of the parts being removed. Fig.'4 represents a detail in elevation of the article receiving and delivering mechanism, certain parts being shown in section. Fig. 5 represents a section on line A Aof Fig. 4. Fig. 6 represents a perspective View of one of the jaws of the receiving mechanism in detached position. Fig. 7 represents a detailed Adiagrammatic view, showing the-actuating cams removed from the machine proper and positioned operatively with respect to each other. Fig. 8 represents a section of one of the chucks and its operating adjuncts. Fig. 9 represents a section on line B B of Fig.` 8. Fig. 10 represents a section of one of the chucks showing the same operating to grip an article externally thereof. Fig. 11 reprsents a similar view showing the same as an internal chuck. Fig. 12 represents a section on line C C of Fig. 8. Figs. 13 and 14 represent details of a portion of Fig. 12 in different positions. Fig. 15 represents a vertical section of Fig. 13. Fig. 16 represents a section on line D D of Fig. 8.

Fig. 17 represents a section on line E E of Fig. 8. Fig. 18 represents a side elevation of a portion of my novel machine showing one of the chucks in its initial position, and certain of the actuating elements therefor. Fig. 19 represents a similar View showing the same parts in the second position they assume during the operat-ion of the machine. Fig. 20 represents a detail showing the trip devices employed in connection with the movement of the chuck mechanism. Fig. 21 represents a View similar to Fig. 18 showing the third position the elements assume during the operation of the machine. Fig. 22 represents a similar view showing the fifth position the parts assume during Y the operation of the machine. Figs. 23, 24,

25, and 26 represent respectively the sixth, seventh, eighth and ninth positions the velements assume in the operation of the machine. Fig. 27 represents in detached position a detail partly in section of one of the equalizing spring mechanisms shown in Fig. 26. Fig. 28 represents a diagrammatic arrangement of the spring mechanism con trolling the several chuck mechanisms. Fig. 2S) represents an end elevation of one of the chuck members and its component parts.

'Similar numerals of reference indicate corresponding parts in the figures.

Referringy to the drawings 1 designates the frame or housing of a buiiing machine, embodying my invention, having suitable bearings 2, in which is rotatably mounted a sleeve 3, within which rotates the main shaft 4 of the buiing mechanism, said shaft having suitable ball bearings 5, so that the sleeve 3 and shaft 4 may rotate at differentspeeds with respect to each other. At the ends of the frame or housing suitable cap plates 6 are provided and Secure the sleeve 3 from longitudinal movement. On one end of the shaft 4 is mounted a pulley 7, adapted to receive power from any suitable source and to transmit the same to said shaft 4, and thence to the buiing wheel or wheels 8, which are detachably secured by means of collars 9 and nut 10, to the opposite end of the shaft 4. In the present instance the buffing wheel 8 is formed of suitable yielding fabric or material, the body of which consists of a suitable abrasive, adapted to produce a high polish on the articles desired.

11 deslgnates a counter-shaft suitably mounted for rotation in the present instance at the lower portion of the frame 1, and carrying on one end a pulley 12, and on the other end a pinion 13, both said pulley and pinion being keyed or otherwise secured to the shaft 11 in order to rotate in unison therewith. The pulley 12 receives power from any suitable source and transmits the same to the pinion 13, which latter is in mesh with the gear 14 of a table 15, which, in the present instance, revolves in a vertical plane, whereby said table receives a rotary motion adapted to vary the relation of certain parts, presently to be described, with 4respect to the bufiing wheel 8. This table 15 revolves in a plane at an angle as a right angle to the sleeve 3 and is provided with a hub 16 having lateral extensions 17 in order to form a suitable bearingsurface on the sleeve 3 upon which it is mounted and which is driven by said table 15 through the medium of a key or spline 18 as will be obvious from Fig. l. It will thus be apparent that the table 15 is provided with a bearing surface 0f some considerable length since the sleeve 3 serves to distribute the strain and wear to the bearings 2 and the main frame 1. Y

Referring now to the'mechanism for receiving the articles to be polished and delivering the same t-o the devices for carrying them into engagement with the buiiing wheel, 19 designates a receiving chuck secured for rotation with the table 15 by means of a key 20 in the extension 17 of the hub 

